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Hi Andranik,
Thanks for posting in the Forums, although if you are asking a new question, it’s best to start a new topic. I’ve moved your post to a new topic.
You didn’t ask a question above, but I’m assuming you got this wrong on a quiz? Look back over the definitions in Unit 1 and see if you see one that talks about “potential”, and let me know what you think.
Hi John,
Are you on a PC or a Mac computer? I know that on my Mac I can hit Command and the + sign to zoom in.
August 5, 2017 at 3:32 pm in reply to: Question about current and voltage in parallel circuits #13088Hi Kokomo,
Samurai talked about series loads, but Boyd’s post is about parallel loads. Is that what you were talking about?
If so, that’s a different scenario.
What is the fact about voltage in parallel circuits? Does it divide up among the branches, or does each branch get the full supply voltage?
Since the question didn’t specify that a loading meter was used, then that does raise uncertainty about the voltage reading. Also, reading voltage alone doesn’t tell you that current is flowing. And loads need power (both voltage and current) to operate.
Does that make sense?
It’s one opening true-false question, then 8 open-answer questions. It’s very Ohm’s Law and basic circuits-oriented, so there are various simple circuit drawings you’ll be looking at.
Not gonna lie – it’s a challenge! More often than not students need a second attempt to pass. BUT – it provides some great learning moments along the way. We found that we need to stretch students at this point to help some of the concepts really sink in.
Don’t stress about it, though. Study the topics we suggest, make sure you’ve got a solid understanding of all the quiz questions and answers, and then go for it. One way or the other it will just be part of the learning process, whether you pass it in the first attempt or the second.
Good question!
Our estimate would be about $700-$1000.
Correct! Any more questions about this topic? If not, you can retake the quiz now.
If we have 1, then we have a watt. If we have 1000 watts, we have a kilo-watt. If we have 0.001 watts (1 divided by 1000, or one-thousandth of a watt), we have a milliwatt.
Correction: I accidentally wrote “microwatt” instead of “milliwatt” in my original reply. Sorry for any confusion!
Okay, thanks!
This question gives you the measurement of 4 megawatts and wants you to choose an equivalent value from the answers given. To find the correct answer requires that you play with the numbers some and push yourself to see how these conversions work.
The table is set up with “unit” being the center row. This is referring to “1” of whatever unit you’re talking about. In our case, for this question, we’re using “watts” as the unit.
If we have 1, then we have a watt. If we have 1000 watts, we have a kilo-watt. If we have 0.001 watts (1 divided by 1000, or one-thousandth of a watt), we have a milliwatt.
And we can also take one amount, and convert the same quantity to a different term.
For example, if someone said we have 10 kilowatts, how many watts would that be? (Let me know your answer)
Hi Steve,
Happy to help, but you left off the Unit and question number from your topic. I’m not sure what you are referring to.
Hi Shannon,
One last question:
Are PTC thermistors used for temperature measurement or reaction?Hi Boyd,
Happy to help, but I’d like to get a little more specific a question from you. Please do re-watch the video, and then let me know what you need more info on.
Hi Shannon,
This information is presented in the video presentation at the end of this unit. It’s a long presentation, which is why we encourage students to pause and make notes.
The other trick is, assuming you’ve watched it all the way through at least once, when you need to review (to study for the quiz, for example), you can move forward in the video a little bit at a time and look for the slide that discusses what you are trying to review, and then re-listen to that bit.
A few questions or assignments to help make sure you get this material.
1. Do you understand what we mean when we say that sensors either are used for measurement or reaction? What would be an example of each of those?
2. For RTD’s: scrub forward in the video until you see the slide on RTDs, and rewatch for a few minutes to review where they are used.
3. To understand PTC thermistors, rewatch that section (about 45 minutes into the presentation), then let me know what PTC thermistors are used for and why.
Or – if you still have lingering questions after watching those bits, let me know!
Hi Shannon,
We do want students who need a reset on a quiz to post a topic in the Forums, but not just to request the reset. We want you to post a topic about what you missed after two attempts, so we can help you figure it out.
Please post a topic in the Appliance Parts forum about the material that you had trouble with on the quiz, and we’ll be glad to work with you to make sure you understand it. Then we can reset the quiz for you.
Yep, voltage drives current.
Thank you as you can tell not much electronic experience yet.
That’s okay! That’s the case with a lot of our students. Just take your time and be sure to ask questions here in the Forum if you need additional info or clarification as you go along. We are more than happy to help.
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